<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div>
        <div id="title">
            <button data-url="/center">个人中心</button>
            <button data-url="/news">新闻</button>
            <button data-url="/music">音乐</button>
        </div>
        <div id="view"></div>
    </div>
    <script>
        const oBtns = document.querySelectorAll('#title button')
        const oView = document.getElementById('view')

        //1.创建一个路由表,规定了路由的对应信息
        const routes = [
            {
                path: '/center',
                content: '个人主页'
            },
            {
                path: '/news',
                content: 'xingwen'
            },
            {
                path: '/music',
                content: 'zhoudon'
            }
        ]

        //2.遍历所有的btns 绑定点击事件
        for (var i = 0; i < oBtns.length; i++) {
            oBtns[i].onclick = function () {
                //获取当前路由跳转按钮上保存的path信息 然后改变地址栏地址的hash值
                location.hash = this.dataset.url
            }
        }

        //3.我们要在onhashchange事件 监听当前的url的hash值的变化
        window.onhashchange = function (e) {
            //在event事件对象上拿到当前监听的新的hash地址
            const newURL = e.newURL.split('#')[1]

            //拿到当前的hash和路由表中的path进行一一对比,更新对应的视图
            routes.forEach((route) => {
                if (route.path === newURL) {
                    //更新视图
                    oView.textContent = route.content
                }
            })
        }
    </script>
</body>

</html>